JHead: Multiple vulnerabilities

Background

JHead is an exif jpeg header manipulation tool.

Description

Marc Merlin and John Dong reported multiple vulnerabilities in JHead:

• A buffer overflow in the DoCommand() function when processing the cmd argument and related to potential string overflows (CVE-2008-4575).
• An insecure creation of a temporary file (CVE-2008-4639).
• A error when unlinking a file (CVE-2008-4640).
• Insufficient escaping of shell metacharacters (CVE-2008-4641).

Impact

A remote attacker could possibly execute arbitrary code by enticing a user or automated system to open a file with a long filename or via unspecified vectors. It is also possible to trick a user into deleting or overwriting files.

Workaround

There is no known workaround at this time.

Resolution

All JHead users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=media-gfx/jhead-2.84-r1"